US2806351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starting and fuel pumping means for gas turbine engines
Assignee: Rolls Royce PLC
•
Filing: 1954-05-06
•
Granted: 1957-09-17
•
Expires: 1974-05-06
Abstract
No abstract record available.
Inventors
- 👤 Kent Nelson Hector
- 👤 Armer Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:23
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/268; F02C7/275; F02C7/277; F02C7/22; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |